Help Micro SDHC card discussion for the Evo 3D.

cobalt said:

Sadly, I'm wondering if there's any chance it takes micro-SDXC cards for whenever those become available. 32GB is almost a little small if I wanted it to house my music collection and a few movies.....

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I agree big time. The only problem is that even if they released the microSDXC's (64GB and up) last I heard is that they are not compatible with the current technology. Allegedly the current phones hardware cannot handle the transfer speeds, interfacing technology, and file system (software issue). Of course this could all change and someone might find a way to retrofit them, but it sounds pretty set in stone. "SDXC memory cards must only [be used] with SDXC devices". The microSDXC's are still a little ways out I'm guessing since they are not readily available and hardware manufacturers will have to change their process and products to support it (who knows, maybe they are already available in Japan).

cobalt said:

I was just looking at this on Newegg. For a 16 GB micro-SDHC, most class 6 are $25-$30. Class 10 is typically $10 more -- i.e. $35-$40, but there are a couple for under $30, including a PNY branded one.

(I agree it's not necessary to go with a class 10, I'm just noting that the price difference doesn't seem as bad as I'd expected.)

Sadly, I'm wondering if there's any chance it takes micro-SDXC cards for whenever those become available. 32GB is almost a little small if I wanted it to house my music collection and a few movies.....

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Not at my desktop ATM, but if I remember right, one of the 3D movies I have on my computer is about 1.5 GB (I backed up my Bluray version and converted it to .mpg file, side-by-side, for 960x540 resolution). I don't really listen to much of my music from my phone, so I'll primarily use the storage for movies.

That being said, the reason I went with class 10 is so I would have to wait over night to transfer files to my phone. The difference will be (for that one movie) waiting ~ 2.5 minutes on a class 10 (1.5GB * 1024 MB/GB / (10 MB/s*60 s/min)) instead of 12.8 minutes on a class 2 (1.5GB * 1024 MB/GB / (2 MB/s*60 s/min)) to get that on the SD card.

So maybe it costs some more to have the class 10, but when you want to watch a movie on the way to visit your girlfriend's parents, and she's nagging you to hurry up, 10 minutes faster may be worth the premium

i just bought a 32GB class 4 micro sd card at frys for $50. im going to use it on my EVO3D and was wondering if it would be possible to move the Green Hornet movie from the card the phone comes with to my new card?? i was also wondering if anybody knows how good these 32GB cards are? the brand is patriot.never used one before. is there really a big diference between a class 2 and a class 4?

boriqua2000 said:

i just bought a 32GB class 4 micro sd card at frys for $50. im going to use it on my EVO3D and was wondering if it would be possible to move the Green Hornet movie from the card the phone comes with to my new card?? i was also wondering if anybody knows how good these 32GB cards are? the brand is patriot.never used one before. is there really a big diference between a class 2 and a class 4?

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I'm currently using some Patriot RAM and a memory stick and I haven't had issues with them as of yet. I haven't used a microSD from them though.

boriqua2000 said:

i just bought a 32GB class 4 micro sd card at frys for $50. im going to use it on my EVO3D and was wondering if it would be possible to move the Green Hornet movie from the card the phone comes with to my new card?? i was also wondering if anybody knows how good these 32GB cards are? the brand is patriot.never used one before. is there really a big diference between a class 2 and a class 4?

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I have several Patriot micro SD cards that were purchased from Fry's Electronics. They work just fine in my Droid X, Nook Color, and Xoom tablet.

PyroSporker said:

I agree big time. The only problem is that even if they released the microSDXC's (64GB and up) last I heard is that they are not compatible with the current technology. Allegedly the current phones hardware cannot handle the transfer speeds, interfacing technology, and file system (software issue). Of course this could all change and someone might find a way to retrofit them, but it sounds pretty set in stone. "SDXC memory cards must only [be used] with SDXC devices". The microSDXC's are still a little ways out I'm guessing since they are not readily available and hardware manufacturers will have to change their process and products to support it (who knows, maybe they are already available in Japan).

Click to expand...

I was reading somewhere that the technology with the XC card allows up to 2TB, is this true? This would be awesome, but that's quite the leap from 32GB.

Some may argue that you would never need that much space in the first place, but there are endless possibilities, especially with Blue-Ray the amount of space movies, games, music and so forth take up (If/when it is possible to have that much space on a MicroSD card, it would allow you to keep everything with you at all times. Backups of files, other doucments and so on).

Vanquished said:

I was reading somewhere that the technology with the XC card allows up to 2TB, is this true? This would be awesome, but that's quite the leap from 32GB.

Some may argue that you would never need that much space in the first place, but there are endless possibilities, especially with Blue-Ray the amount of space movies, games, music and so forth take up (If/when it is possible to have that much space on a MicroSD card, it would allow you to keep everything with you at all times. Backups of files, other doucments and so on).

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I also remember back when people thought that 1GB would never be used on a home computer. Now 1TB is cutting it close for most techy types, and petabytes are just around the corner.

Folks you need to think in terms of bit rate (or byte rate if that is easier).

"professional' has nothing to do with it; if you use a camera with a high density sensor and you intend to take a large number of pictures per second (think 10 frames per second; such as sport sequence) then the amount of data you need to move to the card can be rather high (btw that's why a lot of cameras can burst but not sustain a high frame rate; because the internal buffer is very fast; but the external memory is slow (or the ability to move the data to the external card; so a faster card does not always help here)
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For the evo3d we are talking about marginal number of pixel and bit rate. A typical 1080p web stream is around 4mb/s-6mb/s (blu-ray which tends to be very high quality is 23mb/s to 40mb/s (40 is max per specification). A home transencoding using h.264 would be around 7mb/s dependent on quality setting.
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A class 6 card is suppose to have a min write speed of 6MB/s. This is suppose to be the min write speed regardless of fragmentation (i.e, new a true class 6 card will likely perform much better). Read speed is typically better but should be no worse (naturally many class x cards do not meet class x specification). 6MB/s is 48mb/s or plenty for the very highest blue ray bit rate.
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In reality a class 4 card is probably fine for videos (32mb/s). I usually use quality/reliability/price as my selection factor and reject cards that have been shown to not meet their class standard.
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There is absolutely no harm in getting a faster card as long as it is reliable and you don't mind spending the extra $$$. However, usually the top tier (top class cards) will require a premium price.
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Btw if you are using a camera that has a high burst speed than that might be motivation for a faster card

The sports photographers go crazy for high speed cards and many tests can be found on the web. Here is a typical example that shows how some different cards behave

Nikon D7000 RAW Burst Test

(note the above test are for sdhc cards; not micro sdhc cards; after all it is a camera )
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Note photography is much much more demanding on cards than the evo3d will be with regards to bit/s and you simply do not need any of the high end cards listed in the above link. I merely provided it as a form of raw data.
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And yea a class 10 card is absolutely not required for the evo3d.
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jdsingle said:

I'm not sure a Class 10 card is necessary. I've always been under the impression that they are best used for professional photography.

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It depends how you use the card. I have a transformer and I filled a 16GB card with movies. They aren't super high encoding (around 2mb/s which is plenty for my viewing pleasure) but each movie is still around 1.5GB; so a set of 8 or 9 filled up my 16GB card.
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Naturally the folks who feel higher is better might require 8mb/s or 12mb/s so a 32GB card will almost be mandatory (beware some software (movie players) on android have problems with files over 2GB or 4GB (what were they thinking when they used an int or unsigned int).
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I forget but I think 4GB is the largest fat32 will support so you might need to use a different file format for those 40mb/s movies. Not sure if evo 3d will support ext2 or ext3 or ntfs. Might want to check into that before you start creating those high bit rate encodings.

Vanquished said:

I was reading somewhere that the technology with the XC card allows up to 2TB, is this true? This would be awesome, but that's quite the leap from 32GB.

Some may argue that you would never need that much space in the first place, but there are endless possibilities, especially with Blue-Ray the amount of space movies, games, music and so forth take up (If/when it is possible to have that much space on a MicroSD card, it would allow you to keep everything with you at all times. Backups of files, other doucments and so on).

Click to expand...

Vanquished said:

I was reading somewhere that the technology with the XC card allows up to 2TB, is this true? This would be awesome, but that's quite the leap from 32GB.

Click to expand...

Silly rabbit, they won't go from 32GB to 2TB right away. Just like how they have gradually gotten to 32GB finally being on the market they are going to slowly introduce new cards. The market is cornered and they have us right where they want us. Why give us what we want right away when they can charge us exorbitant amounts of money all along the way. I exaggerate a bit, but it literally is borderline a black market. 64GB MicroSD will probably be the next step, though they have made 48GB SD cards for cameras.

These are just mock ups, but it sure is fun to imagine

This is a feature of andriod. 2.x does have host device; but 3+ current require MTP (think icecream). Google has decent technical reasons for MTP but it is a PIA (esp with linux) and I wish they stuck with host (I have a transformer which has 3x and requires MTP). Windows 7 has built in support for MTP; but haven't tried to use it yet.

autorail1 said:

Any one know if the evo3d is Microsdhc host device or standard microSD enabled device/readers

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Ummm... media transport protocol?

PIA, aka PITA - that one I got.

~~~

http://en.androidworld.it/2011/04/1...evice-a-honeycomb-tablet-to-linux-and-ubuntu/

http://downloadsquad.switched.com/2...helper-program-to-connect-to-android-3-0-tab/

OIC - allows both phone and PC to access card at same time. Lovely. Another solution without a problem.

So wait, will a class 6 card be good enough for doing anything and everything possible on the Evo 3D? Would a class 4 do everything too? I know speeds are different, but I just need one that is fast enough to get the job done without any problems.

coolio86 said:

So wait, will a class 6 card be good enough for doing anything and everything possible on the Evo 3D? Would a class 4 do everything too? I know speeds are different, but I just need one that is fast enough to get the job done without any problems.

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The moral of the story here is that you wouldn't need better than a class 6.

Where a class 10 becomes useful is transferring files to/from a computer.

Hope that helps

Not sure there is a question here; but yea MTP is media transport protocol and PTIA (pin in the ass); but I always use PIA for some reason - probably brain defect.
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Basically MTP allows both devices access the card; while with host interface if the comptuer modifies the card at the same time the device is modifying the card there can be corruption.
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With some of the newer interfaces for andriod 3.0 and how tablets are used I can see how this might be a problem; though in all honesty for the way I use the device it isn't. Anyways change seems to frequently happen for the sake of change; I dreading my upgrade to z68/hd3000 which requires newer linux kernel (I use ubuntu) and that will force the new interfaces on me (which imho are a disaster).

EarlyMon said:

Ummm... media transport protocol?

PIA, aka PITA - that one I got.

~~~

How to connect as usb storage device a Honeycomb tablet to linux and Ubuntu News, - AndroidWorld International

Mac OS X requires a helper program to connect to Android 3.0 tablets

OIC - allows both phone and PC to access card at same time. Lovely. Another solution without a problem.

Click to expand...

I started with a question, and it bugged me so much I searched to see if I'd heard of it or not.

Yes - hate change for the sake of change.

WifelyMon gets confused by the whole umount thing without notes. In our case, decided FTP via wifi was good enough, and that was that.

I guess that for some subset of users, MTP will save them the confusion. If not, then this is change for the sake of change. And if there's anything I hate, it's when they get Windows-centric, then add something on for Mac users like they did a favor, then leave the Linux users twisting while others tell them to get a horse ... er, Windows, I mean Windows. What we have now is OS agnostic. If they can improve it, fine. I've not used any MTP stuff, so ... I dunno.

you2 said:

Folks you need to think in terms of bit rate (or byte rate if that is easier).

"professional' has nothing to do with it; if you use a camera with a high density sensor and you intend to take a large number of pictures per second (think 10 frames per second; such as sport sequence) then the amount of data you need to move to the card can be rather high (btw that's why a lot of cameras can burst but not sustain a high frame rate; because the internal buffer is very fast; but the external memory is slow (or the ability to move the data to the external card; so a faster card does not always help here)

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not sure when the last time any of my professional photographer friends weren't using burst modes? So not quite sure where you got that from. We don't wind up with 1000 pictures in an hour at a motocross race taking one picture every 5 seconds.

Just checked my files on my camera. Each one comes in at ~6MB per file.

Anyone have opinions on companies regarding micro SD cards: Lexar, Patriot, SanDisk...

I've always liked SanDisk, as they were the original ones to make the SD cards. I've heard both Lexar and Kingston are good (I haven't had a chance to try Kingston, but that is the 32GB SDC10 I just ordered). From what I've seen in this thread so far Patriot seems to be decent as well.

What I did was search for cards on Amazon and read the reviews about them. Some of the class 6/10 don't have write speeds they suggest, so you'll really just have to look around to see what to get.

Mauddib said:

Anyone have opinions on companies regarding micro SD cards: Lexar, Patriot, SanDisk...

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I own multiples of each and haven't had any issues with them. Best bet is to read the review on Newegg or Amazon before you make your purchase. Some people swear by one and others will curse it.

you2 said:

It depends how you use the card. I have a transformer and I filled a 16GB card with movies. They aren't super high encoding (around 2mb/s which is plenty for my viewing pleasure) but each movie is still around 1.5GB; so a set of 8 or 9 filled up my 16GB card.
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Naturally the folks who feel higher is better might require 8mb/s or 12mb/s so a 32GB card will almost be mandatory (beware some software (movie players) on android have problems with files over 2GB or 4GB (what were they thinking when they used an int or unsigned int).
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I forget but I think 4GB is the largest fat32 will support so you might need to use a different file format for those 40mb/s movies. Not sure if evo 3d will support ext2 or ext3 or ntfs. Might want to check into that before you start creating those high bit rate encodings.

Click to expand...

I understand the E3D may not be able to handle things like that, I was just suggesting that you use a 2TB card as a USB backup for things like that in the future, and not just for immidiate use.

PyroSporker said:

Silly rabbit, they won't go from 32GB to 2TB right away. Just like how they have gradually gotten to 32GB finally being on the market they are going to slowly introduce new cards. The market is cornered and they have us right where they want us. Why give us what we want right away when they can charge us exorbitant amounts of money all along the way. I exaggerate a bit, but it literally is borderline a black market. 64GB MicroSD will probably be the next step, though they have made 48GB SD cards for cameras.

These are just mock ups, but it sure is fun to imagine

Click to expand...

2TB on a mobile device would be insane...I need it! It's amazing where technology is going. 2TB of information on something so small is just crazy.

The one thing that will be truely annoying is if google does not re-add host support by icecream; then when you upgrade your device to icecream all of a suddent here will be a major interface change when connecting to the computer.
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Lots of if - I think google really wants MTP; but folks are not at all happy with it. I am fairly sure that evo3d will upgrade to ice cream and I think the current timeline is probably q1 or q2 2012 but like all software projects delays are not uncommon

EarlyMon said:

I started with a question, and it bugged me so much I searched to see if I'd heard of it or not.

Yes - hate change for the sake of change.

WifelyMon gets confused by the whole umount thing without notes. In our case, decided FTP via wifi was good enough, and that was that.

I guess that for some subset of users, MTP will save them the confusion. If not, then this is change for the sake of change. And if there's anything I hate, it's when they get Windows-centric, then add something on for Mac users like they did a favor, then leave the Linux users twisting while others tell them to get a horse ... er, Windows, I mean Windows. What we have now is OS agnostic. If they can improve it, fine. I've not used any MTP stuff, so ... I dunno.

Click to expand...

Can you guys give me some recommendations on where i can shop for reasonably priced 32 gb Micro SD cards. was looking on amazon and it seems like i giant crap shoot as far as trusted sellers go. It is kind of scaring me away from continuing to look there. I have looked at SanDisk but they are just so expensive on their official site.

what would really be most preferred is a combo pack of a 32 gb micro sd card with an adapter for the PC on it.

I really want to be able to stop carrying my ipod classic around with me and just use my 3VO as my primary music player.

Speilmen230 said:

Can you guys give me some recommendations on where i can shop for reasonably priced 32 gb Micro SD cards. was looking on amazon and it seems like i giant crap shoot as far as trusted sellers go. It is kind of scaring me away from continuing to look there. I have looked at SanDisk but they are just so expensive on their official site.

what would really be most preferred is a combo pack of a 32 gb micro sd card with an adapter for the PC on it.

I really want to be able to stop carrying my ipod classic around with me and just use my 3VO as my primary music player.

Click to expand...

I ordered this last week and to test it I uploaded all 95 episodes of Kenshin (20gb) to it from my computer. It took about an hour, or about ~5.5mb/s of sustained transfer rate.

Amazon.com: Sandisk 32GB MicroSDHC Micro SD Card with MicroSD to SD adapter & Mobilemate Reader: Electronics